#include <stdio.h>
int main()
{
	char string[100];
	int i,num = 0,word = 0;
	char c ;
	gets(string);
	for(i = 0;(c = string[i]!='\0');i++)
	
		if(c == ' ')
		word = 0;
		else if(word == 0)
		{
			word = 1;
			num++;
			
		}
	
		printf("there are %d word in this line .\n",num);
		return 0;
	
 } 
